PUMPA - SMART LEARNING

எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்

Book Free Demo

10. Difference between dicot & monocot root, stem and leaf

Tissue system and its functions:

Tissue system	Components	Functions
Dermal tissue system	Epidermis and periderm (In older stem and roots)	Protection Prevention of water loss
Ground tissue system	Parenchyma tissue Collenchyma tissue Sclerenchyma tissue	Photosynthesis Food storage Regeneration Support Protection
Vascular tissue system	Vascular tissue Xylem tissue Phloem tissue	Transport of water and minerals. Transport of food.

Differences between dicot and monocot root:

Dicot and monocot root

Tissues	Dicot root	Monocot root
Number of xylem	Tetrarch	Polyarch
Cambium	Present(During secondary growth only)	Absent
Secondary growth	Present	Absent
Pith	Absent	Present
Conjunctive tissue	Parenchyma	Sclerenchyma
Example	Bean	Maize

Differences between dicot stem and monocot stem:

Dicot and monocot stem

Tissues	Dicot stem	Monocot stem
Hypodermis	Collenchymatous	Sclerenmatous
Ground tissue	Differentiated into cortex, endodermis, pericycle and pith	Undifferentiated
Vascular bundles	Less in number Uniform in size Arranged in a ring Open (Cambium present) Bundle sheath absent	Numerous Smaller near periphery, bigger in the centre Scattered Closed (Cambium absent) Bundle sheath present
Secondary growth	Present	Mostly absent
Pith	Present	Absent
Medullary rays	Present	Absent

Differences between of dicot and monocot leaf:

Left to right: Dicot and monocot leaf

Dicot leaf	Monocot leaf
Dorsiventral leaf	Isobilateral leaf
Mesophyll is differentiated into palisade and spongy parenchyma	Mesophyll is not differentiated into palisade and spongy parenchyma

Reference:

https://commons.wikimedia.org/wiki/File:Figure_30_03_04.jpg

https://www.flickr.com/photos/71183136@N08/6985212944

https://en.m.wikipedia.org/wiki/File:Dicot_leaf_L.jpg

https://commons.wikimedia.org/wiki/File:Figure_30_02_06.jpg

Did you find an error?